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anatomy semester 2 final
Terms in this set (9)
a neuron that transmits impulses between other neurons, especially as part of a reflex arc.
a motor neuron together with the muscle fibers (cells) it stimulates.
Peripheral nervous system
the nervous system outside the brain and spinal cord.
somatic nervous system
is the part of the peripheral nervous system associated with skeletal muscle voluntary control of body movements.
sympathetic nervous system
The part of the autonomic nervous system originating in the thoracic and lumbar regions of the spinal cord that in general inhibits or opposes the physiological effects of the parasympathetic nervous system, as in tending to reduce digestive secretions or speed up the heart.
parasympathetic nervous system
The part of the involuntary nervous system that serves to slow the heart rate, increase intestinal and glandular activity, and relax the sphincter muscles.
are a type of glial cell located throughout the brain and spinal cord. Microglia account for 10-15% of all cells found within the brain. As the resident macrophage cells, they act as the first and main form of active immune defense in the central nervous system (CNS).
the three membranes (the dura mater, arachnoid, and pia mater) that line the skull and vertebral canal and enclose the brain and spinal cord.
a compound that occurs throughout the nervous system, in which it functions as a neurotransmitter.
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